Title:
REGENERATION CONTROL DEVICE FOR EXHAUST GAS TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/131086
Kind Code:
A1
Abstract:
This regeneration control device for an exhaust gas treatment device is provided with: a DOC blockage danger condition determination unit for determining, on the basis of a comparison between a threshold value and a counter value pertaining to the operation time of a diesel engine, whether or not a DOC is in a blockage danger condition, which is a condition in which DOC blockage is likely to occur; a DOC temperature-raising execution unit for executing a blockage recovery treatment for raising the temperature of the DOC to a first temperature when the DOC is determined to be in the blockage danger condition; a DPF compulsory regeneration requirement determination unit for determining whether or not a DPF compulsory regeneration execution requirement is met; a DPF compulsory regeneration execution unit for executing a compulsory regeneration treatment for raising the temperature of the DPF to a second temperature and raising the temperature of the DOC to the first temperature when the compulsory regeneration execution requirement is met; and a counter reset treatment unit for resetting the counter value after completion of the compulsory regeneration treatment by the DPF compulsory regeneration execution unit.
Inventors:
NISHIZAWA KAZUKI (JP)
YAMADA TOMOHIDE (JP)
SATO DAISUKE (JP)
ITO HIROYUKI (JP)
YAMADA TOMOHIDE (JP)
SATO DAISUKE (JP)
ITO HIROYUKI (JP)
Application Number:
PCT/JP2017/002732
Publication Date:
August 03, 2017
Filing Date:
January 26, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F01N3/20; F01N3/023; F01N3/035; F01N3/24; F01N11/00
Foreign References:
| JP2015068233A | 2015-04-13 | |||
| JP2015218605A | 2015-12-07 | |||
| JP2010169052A | 2010-08-05 | |||
| JP2007023883A | 2007-02-01 | |||
| JP2006274906A | 2006-10-12 | |||
| JP2015068233A | 2015-04-13 | |||
| JP2013068184A | 2013-04-18 |
Other References:
See also references of EP 3396129A4
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
Download PDF:
Previous Patent: VALVE DEVICE AND WASTE HEAT RECOVERY SYSTEM
Next Patent: PHARMACEUTICAL COMPOSITION CONTAINING DORZOLAMIDE, POLYMER, AND BORIC ACID
Next Patent: PHARMACEUTICAL COMPOSITION CONTAINING DORZOLAMIDE, POLYMER, AND BORIC ACID